I have done some quick tests with FUSE too: it seems to me that, both with the old and with the new kernel, FUSE is approx. five times slower than kernel driver for both reading files and getting stats.
I don't know whether it is just me or if it is expected.On Wed, Jun 17, 2015 at 2:56 AM, Francois Lafont <flafdivers@xxxxxxx> wrote:
Hi,
On 16/06/2015 18:46, negillen negillen wrote:
> Fixed! At least looks like fixed.
That's cool for you. ;)
> It seems that after migrating every node (both servers and clients) from
> kernel 3.10.80-1 to 4.0.4-1 the issue disappeared.
> Now I get decent speeds both for reading files and for getting stats from
> every node.
It seems to me that an interesting test could be to let the old kernel in
your client nodes (ie 3.10.80-1), use ceph-fuse instead of the ceph kernel
module and test if you have decent speeds too.
Bye.
--
François Lafont
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